Mold jacket



y 1950 H R. J. HINES 2,507,158

7 MOLD JACKET Filed Dc. 25, 1948 2 Sheets-Sheet 1 Tier 4 I N V EN TOR. @0535 .I hl/ve-s B 16 21224, 72m, vii/w R. J. HINES MOLD JACKET May 9, 1950 Filed Dec. 23, 1948 2 Sheets-Sheet 2 INVENTOR. P0111514 I f/m-s 252M, 7 mm Aim/ways Patented May 9, 1950 MOIID JACKET" Russell-Jr Hines; Lakewood, Oliimassignor to lhe. HineszFlaskgCo .Gleveland;..Ohio,,a; corporatilm':

Application December 23, 1948', Serial No; 66;869

This invention relates toa foundry jacket adapted to surround a sand-mold= and holdit in shape during-the pouring'ofthe molten metal to insure" aproper casting; the. invention, istoprovide-such a jacket so arranged and constructed that" it will-hold themeld very accurateiyandxwill not become unduly hot in use and will. beconvenient for handling both before and after theicasthas-been made. Anotherob'ject'of my invention isto provide simple means for holding a pluralityof-jackets, one mounted onv another. forencasingan extra deep mold. Cheapness of construction is also a feature of myjacket.

In common withother mold j ckets, my jacket comprises four panelsheld' together at the corners; I have provided; however, novel and effective means for'securing the' cornersri'gidly toeach other and-at the'same' time allowing for the; ready separation ofthe panels at the corners for convenience in shipping or for replacementof any damaged panel.

My improvedjacket is illustratedin the accompanying drawings and is hereinafter fully ex plained and the novel features are summarized in the claims.

In the drawings, Fig, 1 is 'a side elevation of the complete jacket; Fig. 2 is a bottom plan thereof; Fig. 3 is a vertical section, as indicated by the line 3 --S"'of'Fig. 1 showing also parts of the adjacent panel; Fig. 4' is an. enlarged horizontallcros's. section through any of the four corners. of the jacket; Fig. 5"i's'a side elevation partly broken awayof'a plurality of myjacketsimounted one above the other to hold a deeper mold; Fig. 6 is a vertical section in a piano indicated by the line 5-6 on Fig. 5.

Each panel of my jacket comprises an outer cast metal member ll! of open grill work and an impervious heat resisting lining 20. The grill work of the body Iii preferably has a sort of lattice formation, as shown in Figs. 1 and 3, providing ribs I l of ample strength while leaving large open spaces 12. The inner face of this member ID is perfectly smooth. Secured to this inner face is a continuous sheet of strong heat-resisting material 2B. This sheet is preferably of a composition of asbestos and cement united by pressure into a smooth relatively hard slab. This slab is rigidly and permanently secured to the outer member Ii], as for instance by tubular rivets 30 which are countersunk in the lining to leave a perfectly flush interior, and extend through the frame member Id. The four panels are then secured together at the corners, by means about One" of the objects of to be described, providing a rectangular jacket;

The'open rib construction-of the body members materially lightens the jacket while providing suiiicient strength. It also-enables a-rapidradiation of such heat' as passes through the heat resisting lining;

Each frame member" It is formed at its opposite ends with an outwardly projecting wing !3 preferably extending at an angle of about'135- tothe side portions of the body'member; these wings is recessedatitsinnerfacewith a vertical channel" M5 made through the'adjacentwings through which" extend bolts 48 carrying nuts 41. Betweenthe wings and the end'most portions ofthe adjacent linings is a filler w which is" snugly affixed,- at

least temporarily; to each of -the adjacent frame members and their-linings.

In manufacturingthe jacket, each sidemember of the body is-cast, the inner-face thereof isthen machined to'makea-smooth-plane, then-the lining panel 20' is securedover: thissmootlr face by the insertionand upsetting-of the rivets 3!}:- Then each cf the sidepanels-'siinilarly-made are clamped together" about a-forming-block or jig;

having the exact outside dimension of the sand mold with which the---jacket isto'be-use'd'; then thenutsare -tightenedton th'e'bolts firmly clamping the four side panels to-tlie formingblock, which is champered' at'the'corners: Thus when the side panels are' clamped about the block a space is left between the'a-djacent wings and-the immediate adjacent portions oftheliners.

inthis space; the outerend of'the space being blocked at the: time.

The" operation described produces" the filler; shown at 56 in Figs. 2 and 4, and results in forming a rigid rectangular structure ready for use as a mold jacket, as shown in Fig. 2. I prefer to cast the filler 50 while the side panels are cold and free from soldering acid so that while the filler adheres with considerable firmness to both panels it may be readily detached from either of them by a mere hammer blow. This enables the ready separation of thefour panels whenever desired, providing for convenient shipping, and also for replacement of any side should it become damaged.

I prefer to form each body member with a central laterally extending recess near the top, as indicated at 15 in which a U-shaped handle It may be pivotally mounted, the body having an inwardly projecting lug I1 behind the handle when it depends into the recess.

Each of- Registeredopenings are- Their molten metal, as forinstance-aluminum, is-cast The provision in my jacket of the outer or grill member of each side panel and the stiif heat resisting lining enables a plurality of jackets to be surmounted one on the other and secured together as a unit by extending the same liner sheet continuously across two jackets. This provides a deeper jacket available for a deeper mold but still operable as a unit.

The construction just mentioned is illustrated in Figs. 5 and 6, which show two of the side grill members Na and lb one above the other, united by a lining member 20a which overlaps both grill members and is secured thereto by rivets 30a into the grill member Illa and rivets 30b into the grill member [b. In these figures, the space below the liner 20a is occupied by a short liner 20b secured by the rivets 3lb to the lower portion of the grill member l0b.

Figs. 5 and 6 show merely two of the jackets one above the other. If a greater number are employed, for instance, three, the liner 201) would be of suilicient length to extend below the grill member I05 and third grill member and would be riveted to it in the same manner as the liner 201; shown. If desired, however, a one-piece liner may be used in conjunction with a plurality of grill members instead of a plurality of liners.

There is a draft or incline in the inner surface of the side panels as is usual in the case of flasks.

In the case of multiple jackets above described each lower grill member is of correspondingly larger dimensions so as to maintain a continuous incline on the inner face of the combined jacket as illustrated in Fig. 6.

It will be seen from the description given that I have provided in simple form a mold jacket which will have the requisite strength while being comparatively light to handle. The heat resisting lining materially reduces the heat which passes from the casting to the exterior of the jacket and open formation of the outer panel of the jacket provides for ready radiation of such heat. The resulting rapid radiation also has the decided advantage of keeping the jacket sides from warping due to the intense heat of the casting being poured. Cheapness of construction of the jacket is also a feature of my invention, as is the ability to readily separate the four sides of the jacket from each other whenever desired.

The ready separation of my jacket allows the insertion of shims between the cast filler members at the corners and the adjacent wings of the jacket, to enlarge the jacket from its original form whenever required. This is readily effected by loosening the retaining bolts at the corners and separating the jackets and inserting suitable shims having openings for the bolts to pass through the filler member, shims and panel wings.

I claim:

1. A foundry jacket comprising a closed geometric space bounded by a plurality of panels, each panel comprising a body member having a liner, each liner comprising a sheet of heat resisting material contiguous with the entire surface adjacent said closed space, each body member having an outwardly extending oblique win at its respective ends, each wing coacting in spaced abutting relation with another wing of an adjacent body member, a filler member extending continuously between the wings of adjacent body members and extending inwardly into the geometric space and having means overlapping the liners adjacent the ends of the panels, said filler member being snug against both body members but removable from at least one of them, and

means interconnecting the two wings of adjacent panels and the interposed filler member.

2. A foundry jacket comprising a closed geometric space bounded by a plurality of side panels, each side panel comprising a, body member of open grill work having a smooth face adjacent said closed space, a smooth continuous heat resisting sheet liner contiguous with said entire smooth face and riveted thereto, each body member having an outwardly extending oblique wing at its respective ends, each wing having a recess on its inner face, the end of the liner stopping short of the edge of said recess, each wing coacting in spaced abutting relation with a corresponding wing of an adjacent body member, a filler member continuously cast between adjacent wings, said filler member occupying the recesses in the wings and extending inwardly into the geometric space and having means overlapping the ends of the liners of adjacent body members, and bolts passing through the wings of adjacent body members and the filler member therebetween.

RUSSELL J. HINES.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 528,400 Stebbins Oct. 30, 1894 1,773,732 Hines Aug. 26, 1930 2,006,240 Hines June 25,1935 2,223,563 Hines Dec. 3,1940 2,226,058 Hines Dec. 24, 1940 2,242,523 Hines et a1. May 20, 1941 2,272,707 Hines Feb. 10, 1942 

